Bruce Bridgeman's Garden Path

Application Description

This application flickers between two gradients at a selected rate. It was designed to show UC Santa Cruz professor Bruce Bridgeman's illusion.

Illusion Description

With a flicker below fusion for brightness but above fusion for
chromatic flicker, one should see a reddish flicker on one side
of the display, greenish on the other, with a yellow/white strip
of non-flickering surface somewhere in the middle.

Technical Description

To achieve a flicker of 60fps, the application must refresh every 16 2⁄3 seconds. To do so, the application synchronizes with the vertical refreshes of your display. This means some older hardware will be unable to display the application properly. If this is the case, you will (in most cases) receive a warning message.

Screenshot

The options menu (click to enlarge):

Download

Below are links to the open source project, released under the terms of the GNU General Public License Version 3 as published by the Free Software Foundation.